CA2912477C - Methodes et dispositifs de codage et decodage de signal - Google Patents
Methodes et dispositifs de codage et decodage de signal Download PDFInfo
- Publication number
- CA2912477C CA2912477C CA2912477A CA2912477A CA2912477C CA 2912477 C CA2912477 C CA 2912477C CA 2912477 A CA2912477 A CA 2912477A CA 2912477 A CA2912477 A CA 2912477A CA 2912477 C CA2912477 C CA 2912477C
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- vectors
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- spectral coefficients
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- quantized
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 107
- 230000003595 spectral effect Effects 0.000 claims abstract description 700
- 239000013598 vector Substances 0.000 claims description 1140
- 239000012792 core layer Substances 0.000 claims description 23
- 230000001052 transient effect Effects 0.000 claims description 22
- 230000001174 ascending effect Effects 0.000 claims description 13
- 238000001228 spectrum Methods 0.000 abstract description 12
- 238000013139 quantization Methods 0.000 description 17
- 238000010586 diagram Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 9
- 230000005236 sound signal Effects 0.000 description 5
- 238000010606 normalization Methods 0.000 description 4
- -1 that is Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- XMQFTWRPUQYINF-UHFFFAOYSA-N bensulfuron-methyl Chemical compound COC(=O)C1=CC=CC=C1CS(=O)(=O)NC(=O)NC1=NC(OC)=CC(OC)=N1 XMQFTWRPUQYINF-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/002—Dynamic bit allocation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/032—Quantisation or dequantisation of spectral components
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
On décrit, dans les modes de réalisation de l'invention, un procédé et un dispositif de codage et de décodage de signal. Le procédé consiste: à déterminer, en fonction du nombre de bits disponibles et d'une première valeur de seuil de saturation i, un nombre k de sous-bandes à coder, i étant un nombre positif et k un nombre entier positif; à sélectionner k sous-bandes parmi toutes les sous-bandes, en fonction de l'enveloppe quantifiée de chaque sous-bande ou en fonction d'un modèle psychoacoustique; à mettre en oeuvre une opération de codage en un passage sur les coefficients spectraux des k sous-bandes. Dans les modes de réalisation de l'invention, un nombre k de sous-bandes à coder est déterminé en fonction du nombre de bits disponibles et d'une première valeur de seuil de saturation, et k sous-bandes sont sléectionnées pour coder des éléments parmi lesdites plusieurs sous-bandes plutôt que de coder l'intégralité de la bande de fréquence, ce qui réduit le nombre de trous spectraux dans les signaux à décoder et augmente donc la qualité sonore des signaux de sortie.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271015.7 | 2013-07-01 | ||
| CN201310271015.7A CN104282312B (zh) | 2013-07-01 | 2013-07-01 | 信号编码和解码方法以及设备 |
| PCT/CN2014/080682 WO2015000373A1 (fr) | 2013-07-01 | 2014-06-25 | Procédé de codage et de décodage de signal et dispositif associé |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2912477A1 CA2912477A1 (fr) | 2015-01-08 |
| CA2912477C true CA2912477C (fr) | 2019-04-09 |
Family
ID=52143091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2912477A Active CA2912477C (fr) | 2013-07-01 | 2014-06-25 | Methodes et dispositifs de codage et decodage de signal |
Country Status (18)
| Country | Link |
|---|---|
| US (2) | US10152981B2 (fr) |
| EP (1) | EP2988299A4 (fr) |
| JP (1) | JP6289627B2 (fr) |
| KR (2) | KR20160003264A (fr) |
| CN (2) | CN104282312B (fr) |
| AU (1) | AU2014286765B2 (fr) |
| BR (1) | BR112015030852A2 (fr) |
| CA (1) | CA2912477C (fr) |
| CL (1) | CL2015003765A1 (fr) |
| HK (1) | HK1206136A1 (fr) |
| IL (1) | IL242498B (fr) |
| MX (1) | MX359502B (fr) |
| MY (1) | MY163240A (fr) |
| NZ (1) | NZ714187A (fr) |
| RU (1) | RU2633097C2 (fr) |
| SG (1) | SG11201509391RA (fr) |
| UA (1) | UA113041C2 (fr) |
| WO (1) | WO2015000373A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106409303B (zh) | 2014-04-29 | 2019-09-20 | 华为技术有限公司 | 处理信号的方法及设备 |
| CN112751953A (zh) * | 2019-10-31 | 2021-05-04 | 北京小米移动软件有限公司 | 电子设备、控制方法、装置及存储介质 |
| CN113140225B (zh) * | 2020-01-20 | 2024-07-02 | 腾讯科技（深圳）有限公司 | 语音信号处理方法、装置、电子设备及存储介质 |
| CN117476013A (zh) * | 2022-07-27 | 2024-01-30 | 华为技术有限公司 | 音频信号的处理方法、装置、存储介质及计算机程序产品 |
Family Cites Families (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5235671A (en) | 1990-10-15 | 1993-08-10 | Gte Laboratories Incorporated | Dynamic bit allocation subband excited transform coding method and apparatus |
| KR100188912B1 (ko) * | 1992-09-21 | 1999-06-01 | 윤종용 | 서브밴드코딩의 비트재할당 방법 |
| KR100269213B1 (ko) | 1993-10-30 | 2000-10-16 | 윤종용 | 오디오신호의부호화방법 |
| KR0144011B1 (ko) * | 1994-12-31 | 1998-07-15 | 김주용 | 엠펙 오디오 데이타 고속 비트 할당 및 최적 비트 할당 방법 |
| JP3519859B2 (ja) * | 1996-03-26 | 2004-04-19 | 三菱電機株式会社 | 符号器及び復号器 |
| JP3235543B2 (ja) | 1997-10-22 | 2001-12-04 | 松下電器産業株式会社 | 音声符号化／復号化装置 |
| US6148283A (en) | 1998-09-23 | 2000-11-14 | Qualcomm Inc. | Method and apparatus using multi-path multi-stage vector quantizer |
| JP2005010337A (ja) * | 2003-06-18 | 2005-01-13 | Sony Corp | 音声信号圧縮方法及び音声信号圧縮装置 |
| WO2006116025A1 (fr) * | 2005-04-22 | 2006-11-02 | Qualcomm Incorporated | Systemes, procedes et appareil pour lissage de facteur de gain |
| US8396717B2 (en) * | 2005-09-30 | 2013-03-12 | Panasonic Corporation | Speech encoding apparatus and speech encoding method |
| EP1989707A2 (fr) | 2006-02-24 | 2008-11-12 | France Telecom | Procede de codage binaire d'indices de quantification d'une enveloppe d'un signal, procede de decodage d'une enveloppe d'un signal et modules de codage et decodage correspondants |
| JP4396683B2 (ja) * | 2006-10-02 | 2010-01-13 | カシオ計算機株式会社 | 音声符号化装置、音声符号化方法、及び、プログラム |
| JPWO2008084688A1 (ja) * | 2006-12-27 | 2010-04-30 | パナソニック株式会社 | 符号化装置、復号装置及びこれらの方法 |
| CN101105940A (zh) * | 2007-06-27 | 2008-01-16 | 北京中星微电子有限公司 | 音频编解码的量化方法、反变换方法及音频编解码装置 |
| CN101377926B (zh) * | 2007-08-31 | 2012-06-27 | 瑞昱半导体股份有限公司 | 加速量化循环程序功能的音频编码方法 |
| KR20090122142A (ko) * | 2008-05-23 | 2009-11-26 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
| WO2010031003A1 (fr) * | 2008-09-15 | 2010-03-18 | Huawei Technologies Co., Ltd. | Addition d'une seconde couche d'amélioration à une couche centrale basée sur une prédiction linéaire à excitation par code |
| JP5608660B2 (ja) * | 2008-10-10 | 2014-10-15 | テレフオンアクチーボラゲット エル エム エリクソン（パブル） | エネルギ保存型マルチチャネルオーディオ符号化 |
| CN101494054B (zh) * | 2009-02-09 | 2012-02-15 | 华为终端有限公司 | 一种音频码率控制方法及系统 |
| CN103366755B (zh) * | 2009-02-16 | 2016-05-18 | 韩国电子通信研究院 | 对音频信号进行编码和解码的方法和设备 |
| CN101853663B (zh) | 2009-03-30 | 2012-05-23 | 华为技术有限公司 | 比特分配方法、编码装置及解码装置 |
| FR2947944A1 (fr) * | 2009-07-07 | 2011-01-14 | France Telecom | Codage/decodage perfectionne de signaux audionumeriques |
| US8380524B2 (en) * | 2009-11-26 | 2013-02-19 | Research In Motion Limited | Rate-distortion optimization for advanced audio coding |
| CN102081927B (zh) | 2009-11-27 | 2012-07-18 | 中兴通讯股份有限公司 | 一种可分层音频编码、解码方法及系统 |
| EP2362375A1 (fr) | 2010-02-26 | 2011-08-31 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Dispositif et procédé de modification d'un signal audio par mise en forme de son envelope |
| US9508356B2 (en) | 2010-04-19 | 2016-11-29 | Panasonic Intellectual Property Corporation Of America | Encoding device, decoding device, encoding method and decoding method |
| AU2011358654B2 (en) * | 2011-02-09 | 2017-01-05 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient encoding/decoding of audio signals |
| TWI606441B (zh) | 2011-05-13 | 2017-11-21 | 三星電子股份有限公司 | 解碼裝置 |
| RU2464649C1 (ru) | 2011-06-01 | 2012-10-20 | Корпорация "САМСУНГ ЭЛЕКТРОНИКС Ко., Лтд." | Способ обработки звукового сигнала |
-
2013
- 2013-07-01 CN CN201310271015.7A patent/CN104282312B/zh active Active
- 2013-07-01 CN CN201711387694.9A patent/CN108198564B/zh active Active
-
2014
- 2014-06-25 NZ NZ714187A patent/NZ714187A/en unknown
- 2014-06-25 UA UAA201513097A patent/UA113041C2/uk unknown
- 2014-06-25 MX MX2015017743A patent/MX359502B/es active IP Right Grant
- 2014-06-25 JP JP2016522220A patent/JP6289627B2/ja active Active
- 2014-06-25 SG SG11201509391RA patent/SG11201509391RA/en unknown
- 2014-06-25 KR KR1020157034359A patent/KR20160003264A/ko active Application Filing
- 2014-06-25 BR BR112015030852A patent/BR112015030852A2/pt not_active Application Discontinuation
- 2014-06-25 CA CA2912477A patent/CA2912477C/fr active Active
- 2014-06-25 WO PCT/CN2014/080682 patent/WO2015000373A1/fr active Application Filing
- 2014-06-25 KR KR1020177020888A patent/KR20170089982A/ko not_active Application Discontinuation
- 2014-06-25 EP EP14820376.3A patent/EP2988299A4/fr not_active Withdrawn
- 2014-06-25 MY MYPI2015704807A patent/MY163240A/en unknown
- 2014-06-25 RU RU2015156053A patent/RU2633097C2/ru active
- 2014-06-25 AU AU2014286765A patent/AU2014286765B2/en active Active
-
2015
- 2015-07-10 HK HK15106603.9A patent/HK1206136A1/xx unknown
- 2015-11-08 IL IL242498A patent/IL242498B/en active IP Right Grant
- 2015-12-30 US US14/984,703 patent/US10152981B2/en active Active
- 2015-12-30 CL CL2015003765A patent/CL2015003765A1/es unknown
-
2018
- 2018-10-22 US US16/167,281 patent/US10789964B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| US10789964B2 (en) | 2020-09-29 |
| NZ714187A (en) | 2017-01-27 |
| MX359502B (es) | 2018-09-26 |
| BR112015030852A2 (pt) | 2017-07-25 |
| KR20160003264A (ko) | 2016-01-08 |
| EP2988299A4 (fr) | 2016-05-25 |
| KR20170089982A (ko) | 2017-08-04 |
| RU2633097C2 (ru) | 2017-10-11 |
| EP2988299A1 (fr) | 2016-02-24 |
| CA2912477A1 (fr) | 2015-01-08 |
| CN108198564A (zh) | 2018-06-22 |
| AU2014286765A1 (en) | 2015-12-03 |
| IL242498B (en) | 2021-05-31 |
| WO2015000373A1 (fr) | 2015-01-08 |
| MX2015017743A (es) | 2016-04-04 |
| JP6289627B2 (ja) | 2018-03-14 |
| US20160111104A1 (en) | 2016-04-21 |
| US20190057706A1 (en) | 2019-02-21 |
| RU2015156053A (ru) | 2017-08-07 |
| JP2016527546A (ja) | 2016-09-08 |
| CL2015003765A1 (es) | 2016-09-23 |
| CN108198564B (zh) | 2021-02-26 |
| MY163240A (en) | 2017-08-30 |
| US10152981B2 (en) | 2018-12-11 |
| UA113041C2 (uk) | 2016-11-25 |
| CN104282312A (zh) | 2015-01-14 |
| HK1206136A1 (en) | 2015-12-31 |
| SG11201509391RA (en) | 2015-12-30 |
| AU2014286765B2 (en) | 2017-03-02 |
| CN104282312B (zh) | 2018-02-23 |
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| JP6121551B2 (ja) | オーディオ信号のビットを割り当てる方法及び装置 | |
| JP2017138616A (ja) | オーディオ信号符号化及び復号化方法並びにオーディオ信号符号化及び復号化装置 | |
| RU2702265C1 (ru) | Способ и устройство обработки сигналов |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20151113 |